Transitional icon for a portion of a display screen



FIG. 1 is a front view of the first image of a transitional icon forportion of a display screen;

FIG. 2 is a front view of a second image thereof; and,

FIG. 3 is a front view of a third image thereof.

The broken line showing a portion of a display screen is forillustrative purposes only and forms no part of the claimed design.

The appearance of the image transitions sequentially between the imagesshown in FIGS. 1-3. The process or period in which an image transitionsto another forms no part of the claimed design.

The ornamental design for a transitional icon for a portion of a displayscreen, as shown and described.